Reportable Operating Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($)	Mar. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			6
Net sales	$ 875,614	$ 721,902	$ 1,490,075	$ 1,226,580
Income (loss) from operations	127,831	128,181	184,172	190,013
Assets	2,466,349		2,466,349		$ 2,332,250
Unallocated cash and cash equivalents	419,259		419,259		843,527
Unallocated deferred tax assets, net	60,410		60,410		64,217
Reportable segments
Segment Reporting Information [Line Items]
Assets	1,579,078		1,579,078		1,031,390
Reportable segments | UGG brand wholesale
Segment Reporting Information [Line Items]
Assets	789,998		789,998		382,837
Reportable segments | HOKA brand wholesale
Segment Reporting Information [Line Items]
Assets	410,616		410,616		293,025
Reportable segments | Teva brand wholesale
Segment Reporting Information [Line Items]
Assets	65,338		65,338		91,140
Reportable segments | Sanuk brand wholesale
Segment Reporting Information [Line Items]
Assets	40,917		40,917		40,766
Reportable segments | Other brands wholesale
Segment Reporting Information [Line Items]
Assets	70,671		70,671		32,429
Reportable segments | Direct-to-Consumer
Segment Reporting Information [Line Items]
Assets	201,538		201,538		191,193
Segment reconciling items
Segment Reporting Information [Line Items]
Income (loss) from operations	(116,688)	(90,137)	(216,338)	(170,803)
Unallocated cash and cash equivalents	419,259		419,259		843,527
Unallocated deferred tax assets, net	60,410		60,410		64,217
Corporate
Segment Reporting Information [Line Items]
Unallocated other corporate assets	407,602		407,602		$ 393,116
Wholesale | UGG brand wholesale
Segment Reporting Information [Line Items]
Net sales	361,305	348,776	499,167	483,832
Wholesale | HOKA brand wholesale
Segment Reporting Information [Line Items]
Net sales	223,035	146,980	454,920	298,127
Wholesale | Teva brand wholesale
Segment Reporting Information [Line Items]
Net sales	19,587	19,211	66,482	62,570
Wholesale | Sanuk brand wholesale
Segment Reporting Information [Line Items]
Net sales	5,060	7,020	15,786	17,402
Wholesale | Other brands wholesale
Segment Reporting Information [Line Items]
Net sales	27,559	23,253	29,552	27,559
Wholesale | Reportable segments | UGG brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	112,083	121,701	142,748	157,539
Wholesale | Reportable segments | HOKA brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	63,576	43,294	133,192	89,657
Wholesale | Reportable segments | Teva brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	2,737	4,908	15,230	19,411
Wholesale | Reportable segments | Sanuk brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	350	1,523	2,816	4,927
Wholesale | Reportable segments | Other brands wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	5,837	8,158	5,368	10,865
Direct-to-Consumer | Direct-to-Consumer
Segment Reporting Information [Line Items]
Net sales	239,068	176,662	424,168	337,090
Direct-to-Consumer | Reportable segments | Direct-to-Consumer
Segment Reporting Information [Line Items]
Income (loss) from operations	$ 59,936	$ 38,734	$ 101,156	$ 78,417